520 Express Series
2-9
WARNING MARKERS
It is a good idea to ask local authorities if
there are hazardous areas and how they are
marked. Boaters must also recognize the
flag designs which indicate that skin divers
are present and keep well clear of the area.
Watch for swimmers. Swimming areas may
not be marked. Steer clear from the area
and always remain alert.
Navigation markers serve as a means of
identifying navigable routes, and indicate
water hazards. Boaters should become
familiar with navigation markers and stay
within marked boundaries and clear of
hazards.
Safety Precautions for Engine
Exhaust
DANGER
Carbon monoxide gas (CO) is
colorless, odorless and extremely
dangerous. All engines and fuel
burning appliances produce CO as
exhaust. Direct and prolonged
exposure to CO will cause BRAIN
DAMAGE or DEATH. Signs of
exposure to CO include nausea,
dizziness and drowsiness.
Carbon monoxide poisoning should not be
confused with seasickness, intoxication or
heat stress. If someone complains of
irritated eyes, headache, nausea, weakness
or dizziness, or you suspect carbon
monoxide poisoning, immediately move the
person to fresh air, investigate the cause,
and take corrective action. Seek medical
attention if necessary.
The carbon monoxide present in exhaust
fumes can be extremely hazardous. Direct,
prolonged exposure will cause brain
damage or death. Incoherence, drowsiness,
loss of consciousness, headaches, nausea
and vomiting are some symptoms of
exposure to carbon monoxide.
If you think exhaust fumes are entering your
yacht, correct the problem immediately.
Observe the following safety precautions:
• Be alert for the odor of exhaust fumes.
• A natural vacuum created while underway
in certain wind and sea conditions may
allow exhaust to be drawn into the cabin.
Adjust the direction of the yacht while
underway as necessary to alleviate the
presence of exhaust fumes.
• DO NOT allow the yacht to remain
stationary with the engine running for any
extended period.
• Use care when operating engines or the
generator in confined areas. Exhaust
fumes can enter the yacht even with all
windows, doors and hatches closed.
• DO NOT operate the generator or leave
the engine running if the exhaust port is
obstructed.
• DO NOT run the engines or generator
while everyone onboard is sleeping. If a
person is sleeping, be sure adequate
fresh air ventilation is provided.
• If your yacht is equipped with a forward
hatch or windshield side vents, OPEN
THEM while underway.
• If you choose to be underway with canvas
up, you must vent the forward area to clear
the cockpit of fumes.
• Inspect the engine exhaust system
frequently for tightness of clamps and
hoses. If you notice a change in engine
sound, check all exhaust connections.
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